package File;

import java.io.File;
import java.io.FileFilter;

public class Test {
    public static void main(String[] args) {
        File dir = new File("src/main/java/file");
        if(dir.isDirectory()){
            FileFilter filter = new FileFilter() {
                @Override
                public boolean accept(File pathname) {
                    String name = pathname.getName();
                    long len = name.length();
                    return len<=900;
                   // return name.startsWith("D");

                }
            };
            File[] subs = dir.listFiles(filter);
            for (File sub: subs){
                System.out.println(sub.getName());
            }
        }
    }
}
